1642
3
51
975
0
51
515
0
51
256
0
51
4464
0
51
1444
5
51
3963
24
51
1380
8
51
1333
0
51
1592
2
51
377
0
51
323
0
51
734
14
51
1823
23
51
337
3
51
1477
19
51
2694
0
51
1902
19
51
1575
0
51
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Keyword(s): math